Roller mounting



March 3, 1942.

E. KLUGE ROLLER MOUNTING Filed July 5, 1941 Eneva'l K 111%2 Patented Mar. 3, 1942 vireo star Brandtjen & Kluge, Inc.

poration of Minnesota 7 Application July 5, 1941, Serial No. 461,153

5 Claims.

My invention relates to improvements in roller mountings for printing presses and particularly the composition rollers employed in such presses for distributing ink on the ink plates and transferring it from the ink plates to the printing forms.

Composition inking rollers and mountings therefor of conventional form are illustrated and described in Patent No. 2,022,032, dated May 21, 1935, for which Abel Kluge and myself. were joint applicants. An inking roller of such form includes a shaft with a cylindrical body of composition material molded thereon, the terminal portions of said shaft projecting considerably beyond the body of composition material. Each of said terminal portions of said shaft has an abutment and a key struck up therefrom for cooperation with a truck roll removably fitted thereon, and each truck roll travels along a bearer and bearer extension. A ball bearing on such terminal portion of the roller shaft is received in a saddle block. In such conventional mounting construction for an end of an inking roller, the outer stop for the truck roll, opposing the inner stop or abutment struck up from the roller shaft, consists merely of the removable ball bearing, the outer race of which is caught in its respective saddle block and the inner race of which is journaled on the roller shaft. In practice, experience has shown that the ball bearings of such conventional structures are inadequate as outer stops and, of still greater moment, that the inner races of said bearings turn on the roller shafts and to such extent as to very appreciably wear the relatively soft material thereof. This wear results in a loose or sloppy fit between the ball bearings and inking roller shafts and detrimentally affects the emciency of the inking rollers in their function of distributing ink on the ink plate and transferring such ink from such plate to the printing form of the press.

An object of the present invention is to provide improvements in inking rollers and mountings therefor of a simple, durable, inexpensive and effective nature, whereby the inner races of the roller bearings are deprived of rotational movement on the roller shafts and the truck rolls are secured against endwise movement of such shafts.

A further object of the invention is to provide improvements, featured as above noted, which permit the ready removal of the roller bearings and truck rolls from the roller shafts for replacement of the-rolls, or for other purposes, such .St'."Paul, MiiinQ, a cor-.

as the transfer of the roller bearings and truck rolls to the shafts of other inking rollers.

Other objects of the invention'reside in the novel combination and arrangement of parts and in the details of construction hereinafter illustrated and/ or described.

In the drawing, Fig. 1 is a perspective view showing parts of a platen press together'with an embodiment of my present invention applied thereto; Fig. 2 is a detail sectional view taken as on the line 2-2 of Fig, 1; Fig. 3 is a plan view of the structure shown in Fig. 2; Fig.4 is an elevational view illustrating the inner face of the truck roll shown in Figs. 2 and 3;"Flg. 5 is a detail view of a clamping nut employed in the illustrated embodiment of my invention.

Reference being had to the accompanying drawing wherein similar parts'are designated by similar reference characters throughout the several views, it will be seen that Fig. 1 illustrates a portion of an inking disc or plate If) and a portion of a truck rail or bearer extension II, which are familiar parts of a platen printing press. Other familiar parts of a platen press shown in said Fig. '1 include an inking roller arm 12, roller rod 13 and saddle block 14. Portions of a pair of composition inking rollers 15 overlying the inking plate It are also illustrated in Fig. 1, each roller being shown as equipped with a truck roll it clamping nut I! in accord With the present invention.

Each inking roller l5 consists of a cylindrical body l8 of composition material molded about a roller core or shaft l9. The terminal portions of this shaft l9 project considerably beyond the body l8 of composition material to accommodate thereon truck rolls and ball bearings, the former for riding the bearers and bearer extensions of a press and the latter for application to the saddle blocks.

To each of said terminal portions of the roller shaft I9, I apply an end stop in the form of a collar 20 which has diametrically opposed tongues or keys 2| issuing outwardly from the outer face thereof, said collar being permanently secured to said shaft I9 by means of a press-fitted pin '22 passing through collar and shaft.

In the construction of a truck roll 15 is included a sleeve-like hub 23 adapted to be slipped over the end of the shaft l9. This hub is formed with an annular flange 24 at its inner'end and borne by said hub is a rim member 25 made up of a plurality of laminations' of fabric bonded together in a tough rim structure. Screws 26 received in bores 21 in the rim member- 25'and threaded into the flange 24 on the hub 23 secure said rim member relative to said hub. A slot 28 milled into the face of the hub flange 24, diametrically thereof, provides a key-Way common to the two keys 2| on said stop collar 20, the face proper of said flange 24 being adapted to abut against the face of said collar 20 from which said keys 2| extend.

Roller bearings 29 applied to the roller shafts l9 are of conventional form, each consisting of an inner annular race 30 and an outer annular race 3| with bearing balls (not shown) interposed therebetween, the outer race being the narrower and adapted to be embraced, peripherally thereof, in the usual manner by a saddle block I4. The inner race 30, formed with the usual axial bore, freely receives the roller shaft I9 allowing the bearing readily to be slipped onto said shaft with said inner race in endwise engagement with the hub 23 of the truck roll l6.

Each end of each roller shaft 19 is threaded, as at 32, to receive an elongated nut I1 consisting of a sleeve-like body 33 having a shouldered head 34. The body 33 of a nut 11, tightened on a roller shaft l9, engages endwise the inner race 39 of its companion ball bearing 29 clamping said bearing against the hub 23 of the companion truck roll IB which, in turn, is clamped against its cooperating end collar 20. Said body of said nut I1 is accommodated within the saddle block l4 embracing said bearing, the shouldered head 34 of the nut being exposed adjacent to the outer side of such block for convenient access. 7

Each threaded end of each roller shaft I9 is supplied with means for yieldingly latching a clamping nut l1 thereon, such nut, to such end, being formed with an internal latching groove 35 longitudinally thereof. The latching means applied to an end of a roller shaft l9 includes a ball latch 36 contained within a radial bore 3'! in said shaft and yieldingly pressed outwardly by means of a helical spring 38 also contained within said bore 31. The metal of the shaft l9 about the rim of the bore 31 is upset after the introduction of said spring and ball into said bore to reduce the diameter of the rim of the bore and thus retain the spring-pressed ball latch 36 therein, while exposing a spherical portion thereof for reception Within the latching groove 35 of a clamping nut I'I, threaded on the shaft.

In manufacture, the stop collars 20 with their keys 2| are economically constructed and applied to the roller shafts I9, said shafts being also readily threaded at their ends and equipped with the ball latches 36. The milled key ways 28 are conveniently formed in the truck rolls H5. The application to and removal from the roller shafts l9 of the truck rolls l6, bearings 29 and clamping nuts I! is quickly and easily accomplished.

With the clamping nuts I! yieldingly latched in place, the truck rolls I6 are held against end play on the roller shafts l9 and consequently rendered secure in the coaction of their key ways 28 with their companion keys 2! on the stop collars 20. Similarly, the inner races 30 of the ball bearings 29 are clamped against rotation on the said roller shafts 19, whereby wear of the latter for such reason is wholly avoided. In thus preserving the keys 2I and key ways 28 and also the shafts l9 at the portions thereof encircled by the roller bearings 29, it is possible and convenient through the present construction to obtain the full and efficient use of the composition rollers l which run true at all times and to which truck rolls [6 of appropriate diameter may be readily applied as wear, contraction, or expansion occurs in the bodies [8 of composition material.

Changes in the specific form of my invention, as herein disclosed, may be made Within the scope of what is claimed without departing from the spirit of my invention.

Having described my invention, what I claim as new and desire to protect by Letters Patent is:

1. In combination, an inking roller having a shaft and a body thereon, the terminal portions of said shaft extending from said body, each terminal portion of said shaft having a thrust collar secured thereto and formed with a key thereon, a truck roll including a hub abutting said collar and formed with a key-way receiving said key, a ball bearing mounted on the shaft, said bearing including inner and outer races, the former abutting the hub of said truck roll endwise and the latter being adapted to be peripherally embraced by a saddle block, and an elongated end nut threaded on the shaft and consisting of a sleeve-like body and a shouldered head, said body of said nut being adapted to be received within the saddle block in endwise abutting relationship with the inner race of said bearing and with its shouldered head exposed to the outside of said block, said nut having an internal latching groove longitudinally thereof, and said shaft having a spring pressed ball latch disposed at its periphery for yielding engagement with said groove.

2. In combination, an inking roller having a shaft and a body thereon, the terminal portions of said shaft extending from said body, each terminal portion of said shaft having a combined end stop and key secured relative thereto, a truck roll removably mounted on the shaft in endwise abutting relationship with said end stop, said truck roll being formed with an end key way for the reception of said key, a ball bearing removably mounted on said shaft and having an inner race axially receiving said shaft and abutting said truck roll endwise. said bearings also having an outer race adapted to be embraced peripherally by a saddle block, and a clamping nut threaded on the end of said shaft in endwise abutting relationship with said inner race of said bearing, said nut being adapted to clamp said inner bearing race against said truck roll and, in turn, clamp said truck roll against said end stop axially to secure the truck roll relative to said shaft and to prevent rotation of said inner bearing race relative thereto.

3. In combination, an inking roller having a shaft and a body thereon, the terminal portions of said shaft extending from said body, each terminal portion of said shaft having a combined end stop and key secured relative thereto, a truck roll removably mounted on the shaft in endwise abutting relationship with said end stop, said truck roll being formed with an end key way for the reception of said key. a ball bearing removably mounted on said shaft and having an inner race axially receiving said shaft and abutting said truck roll endwise, said bearing also having an outer race adapted to be embraced peripherally by a saddle block, and a clamping nut threaded on the end of said shaft in endwise abutting relationship with said inner race of said bearing, said nut being adapted to clamp said inner bearing race against said truck roll and, in' turn clamp said truck roll against said end stop axially to secure the truck roll relative to said shaft and to prevent rotation of saidinner bearing race relative thereto, and means yieldingly latching said nut on said shaft.

4. In combination, an inking roller including a shaft and a body thereon, a terminal portion of said shaft extending from said body and having an end stop thereon, a truck r011 removably mounted on the shaft for endwise abutment against said end stop, a ball bearing also removably mounted on said shaft and having inner and outer races, the former for enowise abutment against said truck roll, and an end nut threaded on said shaft and adapted to be turned against said inner race of said bearing to clamp the same against the truck roll and, in turn, to clamp said truck roll against said end stop, whereby said inner bearing race is deprived of rotational movement on said shaft.

5. In combination, an inking roller including a shaft and a body thereon. a terminal portion of said shaft extending from said body and having an end stop thereon, a truck r011 removably mounted on the shaft for endwise abutment against said end stop, a ball bearing also removably mounted on said shaft and having inner and outer races, the former for endwise abutment against said truck roll, and an end nut threaded on said shaft and adapted to be turned against said inner race of said bearing toclamp the same against the truck roll and, in turn, to clamp said truck r011 against said end stop, whereby said inner bearing race is deprived of rotational movement on said shaft, and means yieldingly latching said nut on said shaft.

ENEVAL KLUGE. 

